Ad Age reported this week that the Big Four broadcast networks have hit new lows this season. It writes that this will this be the fifth straight year in which ABC, CBS, NBC and Fox will fail to finish with an average of a 3.0 rating or better in the adults 18-49 demo. . . with a real chance that all four will slip below a 2.0.

The vivid lead:

The destabilization of the live TV model continues to gnaw away at the primetime broadcast ratings like a school of piranha stripping the flesh off the bones of a luckless cow. As younger viewers churn away from the tube and programming options proliferate on alternative platforms, nightly deliveries effectively have gone from moo to goo, and all the time-shifting in the world isn’t ever going to put Bessie back together again.

Top 25 Primetime Broadcast TV Programs (Through Week 23 of the 2016-17 Season)
P2+ (millions) A18-49 year-ago avg year-over-year % chg
1 Sunday Night Football (NBC) 20.4 7.0 7.9 -11%
2 Thursday Night Football (NBC)* 13.4 3.8 1.3 +192%
3 Thursday Night Football (CBS)* 11.5 3.6/4.2 4.6/5.2 -22%/-19%
4 The Big Bang Theory (CBS) 14.6 3.3/4.7 3.9/5.5 -15%/-15%
5 Empire (Fox) 8.67 3.2 4.8 -33%
6 This Is Us (NBC) 9.57 2.6 2.2 +18%
7 The Voice (NBC) 10.7 2.5 3.0 -17%
8 Modern Family (ABC) 7.27 2.3 2.7 -15%
9 The Bachelor (ABC) 7.27 2.3 2.3 flat
10 Grey’s Anatomy (ABC) 8.16 2.1 2.3 -9%
11 The Simpsons (Fox) 4.84 2.1 2.1 flat
12 60 Minutes (CBS) 12.7 1.9/2.7 2.2/3.1 -14%/-13%
13 Survivor (CBS) 8.58 1.9/2.6 2.1/3.0 -10%/-13%
14 NCIS (CBS) 15.1 1.8/2.8 2.3/3.4 -22%/-18%
15 Kevin Can Wait (CBS) 8.14 1.8/2.6 1.9/2.6 -5%/flat
16 The Goldbergs (ABC) 6.36 1.8 2.1 -14%
17 Dancing with the Stars (ABC) 11.0 1.7 1.8 -6%
18 Scandal (ABC) 6.61 1.7 1.9 -11%
19 Speechless (ABC) 5.73 1.7 2.1 -19%
20 The Great Indoors (CBS) 7.60 1.6/2.3 2.2/2.9 -27%/-21%
21 Chicago Fire (NBC) 7.19 1.6 1.8 -11%
22 Lethal Weapon (Fox) 6.61 1.6 1.6 flat
23 The Middle (ABC) 6.38 1.6 1.7 -6%
21 The Wall (NBC) 6.36 1.6 1.1 +45%
25 Black-ish (ABC) 5.41 1.6 1.9 -16%

As of this moment, 43 primetime series are averaging less than a 1.0 in the demo; last year at this time, there were 27 fractional shows. All told, the average rating for the 79 scripted series on the Big Four broadcast nets is now a 1.3, down 13% from the year-ago 1.5.